Improvement in revolving fire-arms



J. W. COCHRAN.

Revolver.

Patented Nov. 10, 1863.

l'nveyi 'or.

N. PETERS. PHOTD-LITHDGRAFHER. WISHINGTON. u c.

Jo N WEBSTER OOOHRAN, OF NEW YORK, N. Y.

IMPROVEMENT I REVOLVING FIRE-ARMS.

Specification' forming part of Letters Patent No. 10,553, dated November10, 1863.

mentsin Revolving Fire-Arms; and I do here-- by declare that thefollowing is a full, clear, and exact description of the same, referencebeing had totheaccoinpanyingdrawings,fornr ing part of thisspecification.

My invention consists First, in using double or two raminers or pistonsworked by one lever for loading or ramming the cartridge home. After-ithas been fired the blank shell of the cartridge is removed out ofthefront of the chamber by the reverse motion of the lever. 'When in thisposition the rammers are ready totreload the chamber. Second, inconstructing conical chambers from the front of the cylinder toward thebase, leaving a small hole at the center to admit the pointof thehammerto strike the conical point of the cartridge, and also to allow thesmall rammer or piston to enter at the base of the chamber and push theblank part of the cartridge out at the front. there will be no need ofever removing the cylinder from the frame at' the breech of the arm,either for loadingor removing the blank cartridge or cleaning the piece,whichis very important, particularly for revolving pistols when used inthe army or navy.

Figure l is a plan or' b'irdseye view of a revolving pistol, showing apart of the cylinder in section, made after my invention. 2 is a sideview or elevation of the same parts out of sight, as shown in red lines;Fig. 3, de-

tail views of the parts for loading and remov-' ing the blankcartridges, also the cylinder shown in section with the cartridge in thechamber.

Similar letters of reference indicate correspondingparts in the severalfigures.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

a cmain-part of the pistol; b, i-ylinder; 0, conical chamber forreceiving the conical metallic cartridge; d, rammcr or piston for load-By this arrangementing or ramming the cartridge a into the chamber; d,piston at the rear of the cylinder for removing the blank or shell ofthe cartridge from the chamber at the front, when the recess in the sideof the pistol in front of the chamber is free to receive anothercartridge and be forced into the chamber by rammer d. The piston 61,which has pushed the blank out, and being still in the chamber, ofcourse moves back out of the cylinder at thesame time the cartridge isgoing down into the chamber. The pistonsd and d are held and moved backand forth by a connecting-bar or yoke, e, attached to the outer ends andpassing outside of the cylinder. Rammer dis supported in a dovetailedslot or groove to hold and guide it into the chamber. Piston d issupported at one end by passing through a hole in the recoil-plate f,-or it may be held together with yoke-e in any convenient manner on theside of the handle or frame ofthe pistol out ofthe way of the hand orthe working of the lock or cylinder. The rammers and connecting-bar makea kind of sliding frame, moved and worked by a gear-wheel, g, gearinginto a rack or teeth made on the piston d, to which is attached lever hfor moving the whole backward and forward, and thereby load and unloadwith one operation of lever It. When the cylinder is ready for firing,the lever h is held at the center of the barrel, and at the front bothpistons are out of the chamber and the cylinder is free to turn. Thedotted lines indicate the movement the lever It makes to perform itsfunctions in loading and unloading. of the black arrow to A. By thismotion piston d is brought back sufficiently to allow the blankcartridge to be thrown out by piston d], which is of course brought intothe chamber and forces the blank out. Then a new cartridge is droppedinto the recess in front of the piston 61 and opposite the chamber. Whenlever h is moved in the direction of the red arrow, and when it hasreached the point at, B, the cartridge has been forced home. When leverh is brought back to the center and in line-with the barrel then thecylinder is free First, it is-moved down in the direction to turn. Thismode of arranging the ranimers What I claim as myinvention, and desireto is particularly intended for the use. of my coni- I secure by LettersPatent, is-

cal cartridge and chamber; butthe same prin- Theloading and unloadingramrners or pisciple could be applied to a revolver that is ions 01 andd, connecting-bar 0r yoke e, with ioaded from the base or back of thecylinder the gear-lever h, for revolving fire-arms.

with the common cartridge by changing the J. W. COOHRAN. pistons andreversing the motion of lever h, Mitnesses: that works theloading-rammerfrom the back E. P. BRAY,

' and the unloading-piston from the front. I JOSEPH lWINIM

